/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
- * Author: Zach Brown <zab@zabbo.net>
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * libcfs/libcfs/linux/linux-proc.c
+ *
+ * Author: Zach Brown <zab@zabbo.net>
+ * Author: Peter J. Braam <braam@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
# define DEBUG_SUBSYSTEM S_LNET
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
#include <asm/div64.h>
#include "tracefile.h"
+#ifdef CONFIG_SYSCTL
static cfs_sysctl_table_header_t *lnet_table_header = NULL;
+#endif
extern char lnet_upcall[1024];
+/**
+ * The path of debug log dump upcall script.
+ */
+extern char lnet_debug_log_upcall[1024];
-#define PSDEV_LNET (0x100)
+#ifndef HAVE_SYSCTL_UNNUMBERED
+#define CTL_LNET (0x100)
enum {
PSDEV_DEBUG = 1, /* control debugging */
PSDEV_SUBSYSTEM_DEBUG, /* control debugging */
PSDEV_LNET_DUMP_KERNEL, /* snapshot kernel debug buffer to file */
PSDEV_LNET_DAEMON_FILE, /* spool kernel debug buffer to file */
PSDEV_LNET_DEBUG_MB, /* size of debug buffer */
+ PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
+ PSDEV_LNET_WATCHDOG_RATELIMIT, /* ratelimit watchdog messages */
+ PSDEV_LNET_FORCE_LBUG, /* hook to force an LBUG */
+ PSDEV_LNET_FAIL_LOC, /* control test failures instrumentation */
+ PSDEV_LNET_FAIL_VAL, /* userdata for fail loc */
};
+#else
+#define CTL_LNET CTL_UNNUMBERED
+#define PSDEV_DEBUG CTL_UNNUMBERED
+#define PSDEV_SUBSYSTEM_DEBUG CTL_UNNUMBERED
+#define PSDEV_PRINTK CTL_UNNUMBERED
+#define PSDEV_CONSOLE_RATELIMIT CTL_UNNUMBERED
+#define PSDEV_CONSOLE_MAX_DELAY_CS CTL_UNNUMBERED
+#define PSDEV_CONSOLE_MIN_DELAY_CS CTL_UNNUMBERED
+#define PSDEV_CONSOLE_BACKOFF CTL_UNNUMBERED
+#define PSDEV_DEBUG_PATH CTL_UNNUMBERED
+#define PSDEV_DEBUG_DUMP_PATH CTL_UNNUMBERED
+#define PSDEV_LNET_UPCALL CTL_UNNUMBERED
+#define PSDEV_LNET_MEMUSED CTL_UNNUMBERED
+#define PSDEV_LNET_CATASTROPHE CTL_UNNUMBERED
+#define PSDEV_LNET_PANIC_ON_LBUG CTL_UNNUMBERED
+#define PSDEV_LNET_DUMP_KERNEL CTL_UNNUMBERED
+#define PSDEV_LNET_DAEMON_FILE CTL_UNNUMBERED
+#define PSDEV_LNET_DEBUG_MB CTL_UNNUMBERED
+#define PSDEV_LNET_DEBUG_LOG_UPCALL CTL_UNNUMBERED
+#define PSDEV_LNET_WATCHDOG_RATELIMIT CTL_UNNUMBERED
+#define PSDEV_LNET_FORCE_LBUG CTL_UNNUMBERED
+#define PSDEV_LNET_FAIL_LOC CTL_UNNUMBERED
+#define PSDEV_LNET_FAIL_VAL CTL_UNNUMBERED
+#endif
-static int
-proc_call_handler(void *data, int write,
- loff_t *ppos, void *buffer, size_t *lenp,
+int
+proc_call_handler(void *data, int write,
+ loff_t *ppos, void *buffer, size_t *lenp,
int (*handler)(void *data, int write,
loff_t pos, void *buffer, int len))
{
}
return 0;
}
+EXPORT_SYMBOL(proc_call_handler);
-#define DECLARE_PROC_HANDLER(name) \
-static int \
-LL_PROC_PROTO(name) \
-{ \
- DECLARE_LL_PROC_PPOS_DECL; \
- \
- return proc_call_handler(table->data, write, \
- ppos, buffer, lenp, \
- __##name); \
-}
-
-static int __proc_dobitmasks(void *data, int write,
+static int __proc_dobitmasks(void *data, int write,
loff_t pos, void *buffer, int nob)
{
const int tmpstrlen = 512;
int is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
int is_printk = (mask == &libcfs_printk) ? 1 : 0;
- rc = trace_allocate_string_buffer(&tmpstr, tmpstrlen);
+ rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
if (rc < 0)
return rc;
if (pos >= rc) {
rc = 0;
} else {
- rc = trace_copyout_string(buffer, nob,
- tmpstr + pos, "\n");
+ rc = cfs_trace_copyout_string(buffer, nob,
+ tmpstr + pos, "\n");
}
} else {
- rc = trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
+ rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
if (rc < 0)
return rc;
*mask |= D_EMERG;
}
- trace_free_string_buffer(tmpstr, tmpstrlen);
+ cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
return rc;
}
DECLARE_PROC_HANDLER(proc_dobitmasks)
+static int min_watchdog_ratelimit = 0; /* disable ratelimiting */
+static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
+
static int __proc_dump_kernel(void *data, int write,
loff_t pos, void *buffer, int nob)
{
if (!write)
return 0;
-
- return trace_dump_debug_buffer_usrstr(buffer, nob);
+
+ return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
}
DECLARE_PROC_HANDLER(proc_dump_kernel)
loff_t pos, void *buffer, int nob)
{
if (!write) {
- int len = strlen(tracefile);
-
+ int len = strlen(cfs_tracefile);
+
if (pos >= len)
return 0;
-
- return trace_copyout_string(buffer, nob,
- tracefile + pos, "\n");
+
+ return cfs_trace_copyout_string(buffer, nob,
+ cfs_tracefile + pos, "\n");
}
-
- return trace_daemon_command_usrstr(buffer, nob);
+
+ return cfs_trace_daemon_command_usrstr(buffer, nob);
}
DECLARE_PROC_HANDLER(proc_daemon_file)
if (!write) {
char tmpstr[32];
int len = snprintf(tmpstr, sizeof(tmpstr), "%d",
- trace_get_debug_mb());
+ cfs_trace_get_debug_mb());
if (pos >= len)
return 0;
-
- return trace_copyout_string(buffer, nob, tmpstr + pos, "\n");
+
+ return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
+ "\n");
}
-
- return trace_set_debug_mb_usrstr(buffer, nob);
+
+ return cfs_trace_set_debug_mb_usrstr(buffer, nob);
}
DECLARE_PROC_HANDLER(proc_debug_mb)
return rc;
}
+int LL_PROC_PROTO(libcfs_force_lbug)
+{
+ if (write)
+ LBUG();
+ return 0;
+}
+
+int LL_PROC_PROTO(proc_fail_loc)
+{
+ int rc;
+ long old_fail_loc = cfs_fail_loc;
+
+ rc = ll_proc_dolongvec(table, write, filp, buffer, lenp, ppos);
+ if (old_fail_loc != cfs_fail_loc)
+ cfs_waitq_signal(&cfs_race_waitq);
+ return rc;
+}
+
static cfs_sysctl_table_t lnet_table[] = {
/*
* NB No .strategy entries have been provided since sysctl(8) prefers
* to go via /proc for portability.
*/
{
- .ctl_name = PSDEV_DEBUG,
+ INIT_CTL_NAME(PSDEV_DEBUG)
.procname = "debug",
.data = &libcfs_debug,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dobitmasks
+ .proc_handler = &proc_dobitmasks,
},
{
- .ctl_name = PSDEV_SUBSYSTEM_DEBUG,
+ INIT_CTL_NAME(PSDEV_SUBSYSTEM_DEBUG)
.procname = "subsystem_debug",
.data = &libcfs_subsystem_debug,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dobitmasks
+ .proc_handler = &proc_dobitmasks,
},
{
- .ctl_name = PSDEV_PRINTK,
+ INIT_CTL_NAME(PSDEV_PRINTK)
.procname = "printk",
.data = &libcfs_printk,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dobitmasks
+ .proc_handler = &proc_dobitmasks,
},
{
- .ctl_name = PSDEV_CONSOLE_RATELIMIT,
+ INIT_CTL_NAME(PSDEV_CONSOLE_RATELIMIT)
.procname = "console_ratelimit",
.data = &libcfs_console_ratelimit,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec
},
{
- .ctl_name = PSDEV_CONSOLE_MAX_DELAY_CS,
+ INIT_CTL_NAME(PSDEV_CONSOLE_MAX_DELAY_CS)
.procname = "console_max_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_max_delay_cs
},
{
- .ctl_name = PSDEV_CONSOLE_MIN_DELAY_CS,
+ INIT_CTL_NAME(PSDEV_CONSOLE_MIN_DELAY_CS)
.procname = "console_min_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_min_delay_cs
},
{
- .ctl_name = PSDEV_CONSOLE_BACKOFF,
+ INIT_CTL_NAME(PSDEV_CONSOLE_BACKOFF)
.procname = "console_backoff",
.maxlen = sizeof(int),
.mode = 0644,
},
{
- .ctl_name = PSDEV_DEBUG_PATH,
+ INIT_CTL_NAME(PSDEV_DEBUG_PATH)
.procname = "debug_path",
- .data = debug_file_path,
- .maxlen = sizeof(debug_file_path),
+ .data = libcfs_debug_file_path_arr,
+ .maxlen = sizeof(libcfs_debug_file_path_arr),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
- .ctl_name = PSDEV_LNET_UPCALL,
+ INIT_CTL_NAME(PSDEV_LNET_UPCALL)
.procname = "upcall",
.data = lnet_upcall,
.maxlen = sizeof(lnet_upcall),
.proc_handler = &proc_dostring,
},
{
- .ctl_name = PSDEV_LNET_MEMUSED,
- .procname = "memused",
+ INIT_CTL_NAME(PSDEV_LNET_DEBUG_LOG_UPCALL)
+ .procname = "debug_log_upcall",
+ .data = lnet_debug_log_upcall,
+ .maxlen = sizeof(lnet_debug_log_upcall),
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ },
+ {
+ INIT_CTL_NAME(PSDEV_LNET_MEMUSED)
+ .procname = "lnet_memused",
.data = (int *)&libcfs_kmemory.counter,
.maxlen = sizeof(int),
.mode = 0444,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ INIT_STRATEGY(&sysctl_intvec)
},
{
- .ctl_name = PSDEV_LNET_CATASTROPHE,
+ INIT_CTL_NAME(PSDEV_LNET_CATASTROPHE)
.procname = "catastrophe",
.data = &libcfs_catastrophe,
.maxlen = sizeof(int),
.mode = 0444,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ INIT_STRATEGY(&sysctl_intvec)
},
{
- .ctl_name = PSDEV_LNET_PANIC_ON_LBUG,
+ INIT_CTL_NAME(PSDEV_LNET_PANIC_ON_LBUG)
.procname = "panic_on_lbug",
.data = &libcfs_panic_on_lbug,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ INIT_STRATEGY(&sysctl_intvec)
},
{
- .ctl_name = PSDEV_LNET_DUMP_KERNEL,
+ INIT_CTL_NAME(PSDEV_LNET_DUMP_KERNEL)
.procname = "dump_kernel",
+ .maxlen = 256,
.mode = 0200,
.proc_handler = &proc_dump_kernel,
},
{
- .ctl_name = PSDEV_LNET_DAEMON_FILE,
+ INIT_CTL_NAME(PSDEV_LNET_DAEMON_FILE)
.procname = "daemon_file",
.mode = 0644,
+ .maxlen = 256,
.proc_handler = &proc_daemon_file,
},
{
- .ctl_name = PSDEV_LNET_DEBUG_MB,
+ INIT_CTL_NAME(PSDEV_LNET_DEBUG_MB)
.procname = "debug_mb",
.mode = 0644,
.proc_handler = &proc_debug_mb,
},
- {0}
+ {
+ INIT_CTL_NAME(PSDEV_LNET_WATCHDOG_RATELIMIT)
+ .procname = "watchdog_ratelimit",
+ .data = &libcfs_watchdog_ratelimit,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .extra1 = &min_watchdog_ratelimit,
+ .extra2 = &max_watchdog_ratelimit,
+ },
+ { INIT_CTL_NAME(PSDEV_LNET_FORCE_LBUG)
+ .procname = "force_lbug",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0200,
+ .proc_handler = &libcfs_force_lbug
+ },
+ {
+ INIT_CTL_NAME(PSDEV_LNET_FAIL_LOC)
+ .procname = "fail_loc",
+ .data = &cfs_fail_loc,
+ .maxlen = sizeof(cfs_fail_loc),
+ .mode = 0644,
+ .proc_handler = &proc_fail_loc
+ },
+ {
+ INIT_CTL_NAME(PSDEV_LNET_FAIL_VAL)
+ .procname = "fail_val",
+ .data = &cfs_fail_val,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME(0)
+ }
};
-static cfs_sysctl_table_t top_table[2] = {
+#ifdef CONFIG_SYSCTL
+static cfs_sysctl_table_t top_table[] = {
{
- .ctl_name = PSDEV_LNET,
+ INIT_CTL_NAME(CTL_LNET)
.procname = "lnet",
+ .mode = 0555,
.data = NULL,
.maxlen = 0,
- .mode = 0555,
- .child = lnet_table
+ .child = lnet_table,
},
- {0}
+ {
+ INIT_CTL_NAME(0)
+ }
};
int insert_proc(void)
{
-#ifdef CONFIG_SYSCTL
if (lnet_table_header == NULL)
lnet_table_header = cfs_register_sysctl_table(top_table, 0);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff